49173091 has 4 divisors (see below), whose sum is σ = 53643384. Its totient is φ = 44702800.

The previous prime is 49173073. The next prime is 49173097. The reversal of 49173091 is 19037194.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49173091 - 2¹⁵ = 49140323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49173097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2235130 + ... + 2235151.

It is an arithmetic number, because the mean of its divisors is an integer number (13410846).

Almost surely, 2^49173091 is an apocalyptic number.

49173091 is a deficient number, since it is larger than the sum of its proper divisors (4470293).

49173091 is a wasteful number, since it uses less digits than its factorization.

49173091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4470292.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 49173091 is about 7012.3527435519. The cubic root of 49173091 is about 366.3609441528.

It can be divided in two parts, 4917 and 3091, that added together give a palindrome (8008).

The spelling of 49173091 in words is "forty-nine million, one hundred seventy-three thousand, ninety-one".